Reversible shirt

ABSTRACT

Provided is a reversible shirt that can be worn irrespective of whether the side to be worn is the inner side or the outer side and that can be worn while maintaining a desired wear comfort and a desired appearance irrespective of whether the side to be worn is the front side or the rear side by removing the distinction between the front and rear sides. A reversible shirt 1 includes a front piece 2, a rear piece 3, a left sleeve 4, and a right sleeve 5 that are made of a reversible fabric and are joined to each other, in which the front piece 2 and the rear piece 3 have the same shape and the same size.

TECHNICAL FIELD

The present invention relates to a shirt that is used as an underwearand more specifically relates to a reversible shirt that can bereversibly worn.

BACKGROUND ART

In a daily life, a shirt is likely to be reversed when taken off. Inparticular, a shirt such as an underwear or a sportswear that is used indirect contact with a skin is likely to be soaked with sweat. Therefore,when the shirt is taken off while being reversed, the shirt can besmoothly taken off. However, when the reversed shirt is worn again or iscleaned, it is necessary to return the reversed state to the originalstate, and thus the workload of a user increases. In addition, when thereversed shirt is worn again in a state where the user forgot to returnthe reversed shirt to the original state, the fashionability of the usermay deteriorate. On the other hand, a reversible shirt having the samedesign on the outer side and the inner side is developed and is widelyused. When this reversible shirt is reversed when taken off, it isunnecessary to return the reversed state to the original state, and theshirt can be worn again without deterioration in fashionability.Further, by designing the outer side and the inner side to havedifferent color combinations, two ways of wearing can be enjoyed withone shirt. In addition, in order to improve the appearance of the innerside, a method of patching tape-like cloth on a seam on the inner sideis also disclosed (for example, refer to Patent Literatur 1 below).

CITATION LIST Patent Literature

PTL 1: Japanese Unexamined Patent Publication JP-A 2007-262641

SUMMARY OF INVENTION

Basically, this reversible shirt has a function of improvingfashionability in that different color combinations on the inner andouter sides can be enjoyed. Here, however, a novel reversible shirt thatcan be worn or taken off without caring whether the side to be worn isthe inner side or the outer side by intentionally designing the innerand outer sides to be the same such that “there is no difference betweenthe inner and outer sides” was made in order to reduce the workload.

Further, in a reversible shirt in the related art, the inner and outersides cannot be distinguished from each other, but it is necessary todistinguish between the front and rear sides. In welfare facilities forpeople who need to be supported or cared, in particular, in facilitiesfor disabled and elderly persons, it is difficult for a user to wearthis shirt in an appropriate direction by itself, and there is a problemin that the workload increases when a supporter or carer helps the userto wear the shirt.

An object of the present invention is to provide a reversible shirt thatcan be worn irrespective of whether the side to be worn is the innerside or the outer side by removing the distinction between the inner andouter sides and that can be worn while maintaining a desired wearcomfort and a desired appearance irrespective of whether the side to beworn is the front side or the rear side by removing the distinctionbetween the front and rear sides.

Solution to Problem

In order to achieve the object, the present invention has the followingaspects.

1) A reversible shirt including a front piece, a rear piece, a leftsleeve, and a right sleeve that are made of a reversible fabric and arejoined to each other,

in which the front piece and the rear piece have the same shape and thesame size, and

the shirt is capable of being reversibly worn irrespective of whetherthe side to be worn is the front side or the rear side or is the innerside or the outer side.

2) The reversible shirt according to 1),

in which a neck width has a length that is 30% to 68% with respect to ashoulder width, and

a front neck depth and a back neck depth have a length of 50% to 100%with respect to the neck width.

3) The reversible shirt according to 1) or 2),

in which the front piece and the rear piece have a substantiallytriangular shoulder line gusset region for absorbing a difference infront-to-back thickness of a shoulder of a wearer in a portion rangingfrom an upper end of a left armhole to a left end portion of a necklineand in a portion ranging from an upper end of a right armhole to a rightend portion of the neckline.

4) The reversible shirt according to any one of 1) to 3),

in which the reversible fabric forming the front piece and the rearpiece is made of knit fabric, and

in the front piece and the rear piece, an angle (α) of a straight lineconnecting an upper end of a left armhole and a left end of a necklineand a straight line connecting an upper end of a right armhole and aright end of the neckline with respect to a straight line connecting theupper end of the left armhole and the upper end of the right armhole is11° to 41°.

5) The reversible shirt according to 4),

in which the angle (α) is 19° to 39° when the shirt is worn by a man,the angle (α) is 19° to 41° when the shirt is worn by a woman, and theangle (α) is 11° to 34° when the shirt is worn by a child.

6) The reversible shirt according to any one of 1) to 5),

in which the front piece and the rear piece have a substantiallytriangular sideline gusset region for absorbing a difference infront-to-back thickness of a shoulder of a wearer in a portion rangingfrom an upper position of a left sideline to a lower end portion of aleft armhole and in a portion ranging from an upper position of a rightsideline to a lower end portion of a right armhole.

7) The reversible shirt according to any one of 1) to 6),

in which the reversible fabric forming the front piece and the rearpiece is made of knit fabric, and

in the front piece and the rear piece, an angle (β) of a straight lineconnecting an upper end and a lower end of a left armhole and a straightline connecting an upper end and a lower end of a right armhole withrespect to a straight line connecting the upper end of the left armholeand the upper end of the right armhole is 91° to 115°.

8) The reversible shirt according to 7),

in which the angle (β) is 91° to 107° when the shirt is worn by a man,the angle (β) is 98° to 115° when the shirt is worn by a woman, and theangle (β) is 97° to 115° when the shirt is worn by a child.

9) The reversible shirt according to 1),

in which the left sleeve and the right sleeve are in the form of raglansleeves,

a front neck depth and a back neck depth have a length of 45% to 95%with respect to a neck width, and

an angle (γ) of a straight line connecting a midpoint of a straight linethat connects a midpoint of a neckline of the left sleeve and a midpointof a neckline of the right sleeve and a neck-side end portion of araglan line with respect to a straight line connecting the midpoint ofthe neckline of the left sleeve and the midpoint of the neckline of theright sleeve is 0° to 40°.

Advantageous Effects of Invention

In the reversible shirt according to 1), the appearance is the same fromany of front and rear direction, and the shirt can be reversibly wornirrespective of whether the side to be worn is the front side or therear side or is the inner side or the outer side by removing thedistinction between the inner side and the outer side and by removingthe distinction between the front side and the rear side.

In the reversible shirt according to 2), the appearance of the collar isnatural when seen from any of the front and rear direction.

In the reversible shirt according to 3), a difference in front-to-backthickness of a shoulder of a wearer is absorbed by the shoulder linegusset region. Therefore, the appearance of the hem and the shoulderpart is natural when seen from any of the front and rear sides, and anoperation of raising, lowering, or turning an arm can be smoothlyperformed.

In the reversible shirt according to 4), while maintaining a good wearcomfort, the appearance of the hem and the shoulder part is natural whenseen from any of the front and rear sides, and an operation of raising,lowering, or turning an arm can be smoothly performed.

In the reversible shirt according to 5), when the shirt is worn by aman, a woman, or a child, while maintaining a good wear comfortaccording to the body shape of the wearer, the appearance of the hem andthe shoulder part is natural when seen from any of the front and rearsides, and an operation of raising, lowering, or turning an arm can bemore smoothly performed.

In the reversible shirt according to 6), a difference in front-to-backthickness of a shoulder of a wearer is absorbed by the sideline gussetregion. Therefore, the appearance of the torso part is natural when seenfrom any of the front and rear sides, and an operation of raising,lowering, or turning an arm can be smoothly performed.

In the reversible shirt according to 7), while maintaining a good wearcomfort, the appearance of the torso part is natural when seen from anyof the front and rear sides, and an operation of raising, lowering, orturning an arm can be smoothly performed.

In the reversible shirt according to 8), when the shirt is worn by aman, a woman, or a child, while maintaining a good wear comfortaccording to the body shape of the wearer, the appearance of the torsopart is natural when seen from any of the front and rear sides, and anoperation of raising, lowering, or turning an arm can be more smoothlyperformed.

In the reversible shirt according to 9), an operation of raising,lowering, or turning an arm can be more smoothly performed, and the wearcomfort is good.

BRIEF DESCRIPTION OF DRAWINGS

FIG. 1 is a front view illustrating a reversible shirt according to afirst embodiment of the present invention.

FIG. 2 is an exploded view illustrating a pattern of each of a frontpiece, a rear piece, a left sleeve, and a right sleeve of the reversibleshirt illustrated in FIG. 1.

FIG. 3 is an enlarged view illustrating major parts of the reversibleshirt illustrated in FIG. 1.

FIG. 4 is a front view illustrating a reversible shirt according to asecond embodiment of the present invention.

FIG. 5 is an exploded view illustrating a pattern of each of a frontpiece, a rear piece, a left sleeve, and a right sleeve of the reversibleshirt illustrated in FIG. 2.

FIG. 6 is an enlarged view illustrating major parts of the reversibleshirt illustrated in FIG. 5.

DESCRIPTION OF EMBODIMENTS

Hereinafter, embodiments of the present invention will be described withreference to FIGS. 1 to 6.

As illustrated in FIG. 1, a first embodiment of the present inventionrelates to a short-sleeved reversible shirt (1) adopting the form ofset-in sleeves. The reversible shirt (1) includes a front piece (2), arear piece (3), a left sleeve (4), and a right sleeve (5) that are madeof a reversible fabric and are joined to each other, in which the frontpiece (2) and the rear piece (3) have the same shape and the same size.The reversible shirt according to the present invention is made ofsingle fabric that can be worn irrespective of whether the outer surfaceto be worn is the outer side or the inner side, for example, knit fabricknitted by double-sided knitting. The fabric of the reversible shirt isnot limited to knit fabric. For example, a fabric such as syntheticfabric having low elasticity can also be used. The term “the same shapeand the same size” described in the present invention includes a smalldimensional error.

Specifically, the front piece (2) and the rear piece (3) are joinedthrough shoulder joint cloths (17), and the front piece (2) and the rearpiece (3) are joined through side joint cloths (9). Further, the leftsleeve (4) and the right sleeve (5) having a cylindrical shape arejoined to a pair of left and right armholes (10) formed between theshoulder joint cloths (17) and the side joint cloths (9). In addition,after joining the front piece (2) and the rear piece (3), a collarportion (wrapper) (7) for reinforcement is joined to the entirecircumference of necklines (6) of the front piece (2) and the rear piece(3) to overlap the necklines (6), and a tag (8) representing the size,the cleaning method, and the like is attached to a hem-side end portionof the right side joint cloth (9). “Joining” described in the presentinvention refers to a process of joining a plurality of fabric piecesinto one, and specifically refers to a sewing process (for example,flatseamer) of sewing fabric pieces with threads or a bonding process ofbonding fabric pieces using an adhesive. This embodiment mainly shows anexample of sewing fabric pieces.

As illustrated in FIG. 3, the respective dimensions of the reversibleshirt (1) are as follows. A sleeve-side end portion of the left shoulderjoint cloth (17), that is, an upper end of the left armhole (10) will bereferred to as “left armhole upper end (A)”, and a sleeve-side endportion of the right shoulder joint cloth (17), that is, an upper end ofthe right armhole (10) will be referred to as “right armhole upper end(A′)”. The length of a straight line (line A-A′) connecting the leftarmhole upper end (A) and the right armhole upper end (A′) will bereferred to as “shoulder width (12)”. A left end of the neckline (6) ofthe front piece (2) (rear piece (3)) will be referred to as “necklineleft end (B)”, a right end of the neckline (6) of the front piece (2)(rear piece (3)) will be referred to as “neckline right end (B′)”, and astraight-line distance between the neckline left end (B) and theneckline right end (B′) will be referred to as “neck width (13)”. Amidpoint of a straight line (line B-B′) connecting the neckline left end(B) and the neckline right end (B′) will be referred to as “midpoint(18)”, a straight-line distance between the midpoint (18) and a midpointof the neckline (6) of the front piece (2) will be referred to as “frontneck depth (14)”, and a straight-line distance between the midpoint (18)and a midpoint of the neckline (6) of the rear piece (3) will bereferred to as “back neck depth (15)”. The front piece (2) and the rearpiece (3) have the same shape and the same size. Therefore, the frontneck depth (14) and the back neck depth (15) have the same length. Theshape of the neckline (6) is not particularly limited and is preferablya bilaterally symmetric substantially U-shape or substantially V-shapesuch as a round neck or a V-neck. In this embodiment, a crew neck as atype of the round neck is described as an example.

The neck width (13) has a length of 30% to 68% and preferably 50% to 67%with respect to the shoulder width (12). The front neck depth (14) andthe back neck depth (15) have a length of 50% to 100% and preferably 52%to 95% with respect to the neck width (13).

Left and right shoulder lines formed by the left and right shoulderjoint cloths (17) of the front piece (2) and the rear piece (3) beingjoined have a rising slope in a portion ranging from the left armholeupper end (A) to the neckline left end (B) and in a portion ranging fromthe right armhole upper end (A′) to the neckline right end (B′) suchthat shoulder line gusset regions (20) are formed.

In the case of a shirt in the related art where front and reardirections for wearing are determined, the shoulder lines areappropriately set depending on the use, shape, or size of the shirt. Ingeneral, the rear piece is made to be larger than the front piece.Specifically, the length from the hem to the shoulder joint cloth islong in the rear piece and is short in the front piece. The shoulderlines formed by the shoulder joint cloths being joined are positioned infront of a center line when seen from a side surface of the front pieceand the rear piece that are joined. With this configuration, forshoulders of a wearer where the rear side is thick and the front side isthin, the thick rear side is covered with the rear piece that is made tobe long up to the shoulder lines, and the thin front side is coveredwith the front piece that is made to be short up to the shoulder lines.As a result, the shoulder lines are fitted to the shoulders of thewearer during wearing.

In the reversible shirt (1), the front piece (2) and the rear piece (3)have the same shape and the same size. Therefore, the shoulder jointcloths (17), that is, the shoulder lines are positioned at a position ofa center line when seen from a side surface of the front piece (2) andthe rear piece (3) that are joined. The shoulder lines of the reversibleshirt (1) have a sharper slope than shoulder lines of a shirt of therelated art in the portion ranging from the left armhole upper end (A)to the neckline left end (B) and in the portion ranging from the rightarmhole upper end (A′) to the neckline right end (B′) such that thesubstantially triangular shoulder line gusset regions (20) are formed.Regarding the shoulder line gusset regions (20), the left shoulder linegusset region (20) will be described in detail as an example. The rightshoulder line gusset region (20) is configured to be symmetrical to theleft shoulder line gusset region (20).

When the slope of the left shoulder line is represented by an angle (α)of a straight line (line A-B) connecting the left armhole upper end (A)and the neckline left end portion (B) with respect to the line A-A′, theangle (α) is 10° to 42°. It is preferable that the angle (α) is 19° to39° when the shirt is worn by a man, the angle (α) is 19° to 41° whenthe shirt is worn by a woman, and the angle (α) is 11° to 34° when theshirt is worn by a child. It is more preferable that the angle (α) is26° to 33° when the shirt is worn by a man, the angle (α) is 27° to 35°when the shirt is worn by a woman, and the angle (α) is 17° to 29° whenthe shirt is worn by a child.

Due to the left and right shoulder line gusset regions (20), anappropriate allowance can be given to portions ranging from the left andright armholes (10) to the necklines (6), and the shoulder line gussetregion (20) absorbs a difference in front-to-back thickness of theshoulder of the wearer. Therefore, even when a wearer wears thereversible shirt (1) having a size that is fitted to the size of thebody of the wearer irrespective of whether the side to be worn is thefront side or the rear side, the fabric does not twitch, and theappearance of the hem and the shoulder part is natural when seen fromany of the front and rear sides, and an operation of raising, lowering,or turning an arm can be smoothly performed.

Left and right sidelines formed by the left and right side joint cloths(9) of the front piece (2) and the rear piece (3) being joined to eachother are inclined outward in portions ranging from predeterminedpositions of the sidelines to lower ends of the armholes such thatsideline gusset regions (30) are formed.

In the case of a shirt in the related art where front and reardirections for wearing are determined, the shoulder lines are positionedin front of a center line when seen from a side surface of the frontpiece and the rear piece that are joined. In addition, for shoulders ofa wearer where the rear side is thick and the front side is thin, thethick rear side is covered with the rear piece that is made to be longup to the shoulder lines, and the thin front side is covered with thefront piece that is made to be short up to the shoulder lines. As aresult, the shoulder lines are fitted to the shoulders of the wearerduring wearing. Therefore, in general, the sidelines are likely to beformed simply to be substantially vertical in many cases.

The sidelines of the reversible shirt (1) are inclined further outwardthan a shirt in the related art in the portions ranging from thehem-side end portions to the lower ends of the armholes such that thesubstantially triangular sideline gusset regions (30) are formed.Regarding the sideline gusset regions (30), the left sideline gussetregion (30) will be described in detail as an example. The rightsideline gusset region (30) is configured to be symmetrical to the leftsideline gusset region (30).

The lower end of the left armhole (10) will be referred to as “leftarmhole lower end (C)”, and the lower end of the right armhole (10) willbe referred to as “right armhole lower end (C′)”. When the degree of theoutward inclination of the sideline is represented by an angle (β) of astraight line (line A-C) connecting the left armhole upper end (A) andthe left armhole lower end (C) to the line A-A′, the angle (β) is 91° to115°. It is preferable that the angle (β) is 91° to 107° when the shirtis worn by a man, the angle (β) is 98° to 115° when the shirt is worn bya woman, and the angle (β) is 97° to 115° when the shirt is worn by achild. It is more preferable that the angle (β) is 97° to 102° when theshirt is worn by a man, the angle (β) is 104° to 109° when the shirt isworn by a woman, and the angle (β) is 104° to 111° when the shirt isworn by a child.

Due to the left and right sideline gusset regions (30), even when awearer wears the reversible shirt (1) that is fitted to the size of thebody of the wearer and where the front piece (2) and the rear piece (3)have the same shape and the same size, an appropriate allowance can begiven to the vicinity of the lower ends of the left and right armholes(10), and the sideline gusset regions (30) absorbs a difference infront-to-back thickness of the shoulder of the wearer. Therefore, evenwhen the wearer wears the reversible shirt (1) irrespective of whetherthe side to be worn is the front side or the rear side, the fabric doesnot twitch, and the appearance of the torso part is natural when seenfrom any of the front and rear sides, and an operation of raising,lowering, or turning an arm can be more smoothly performed.

Positions at which the left and right sidelines start to be inclinedoutward are not particularly limited but are preferably positions otherthan the vicinity of both ends of the sidelines and more preferablypositions in the vicinity of the centers of the sidelines.

The shoulder line gusset region (20) and the sideline gusset region (30)may be formed on both sides of the reversible shirt (1) or on only anyone of the sides. Regarding the naturalness of the appearance of thereversible shirt (1) when seen from the front and rear sides and thesmoothness of an operation of raising, lowering, or turning an arm, whenboth the shoulder line gusset region (20) and the sideline gussetregions (30) are formed, the naturalness and the smoothness are thehighest, when only the shoulder line gusset region (20) is formed, thenaturalness and the smoothness are the second highest, and when only thesideline gusset regions (30) is formed, the naturalness and thesmoothness are the lowest.

The reversible shirt (1) according to the first embodiment has theabove-described configuration. As a result, even when the necklines (6)and the armholes (10) of the front piece (2) and the rear piece (3) havethe same shapes, the fabric is loosened according to the shape of theneck of the wearer such that the front necklines (6) are slightlycurved, the fabric slightly twitches such that the back neckline (6)becomes linear, and the left and right shoulder line gusset regions (20)and the sideline gusset regions (30) absorb a difference infront-to-back thickness of the shoulder of the wearer. Thus, theappearance of the shoulder part and the torso part when seen from any ofthe front and rear sides can be secured, an operation of raising,lowering, or turning an arm can be smoothly performed, and a good wearcomfort can also be secured.

FIGS. 4 to 6 illustrate a reversible shirt (100) according to a secondembodiment of the present invention. The reversible shirt (100)according to the second embodiment is the short-sleeved reversible shirt(100) adopting the form of raglan sleeves. The reversible shirt (100)includes a front piece (102), a rear piece (103), a left sleeve (104),and a right sleeve (105) that are made of a reversible fabric and arejoined to each other, in which the front piece (102) and the rear piece(103) have the same shape and the same size. The form of raglan sleevesdescribed in the present invention refers to a form where the frontpiece and the rear piece do not have a shoulder part and the shoulderpart is formed by the left sleeve and the right sleeve.

Specifically, the front piece (102) and the rear piece (103) are joinedthrough side joint cloths (109), and the left sleeve (104) and the rightsleeve (105) having a cylindrical shape are joined to left and rightarmholes (110) of the front piece (102) and the rear piece (103),respectively. In addition, the front piece (102), the rear piece (103),the left sleeve (104), and the right sleeve (105) are joined to eachother, a collar portion (wrapper) (107) for reinforcement is joined tothe entire circumference of necklines (106) of the front piece (102),the rear piece (103), the left sleeve (104), and the right sleeve (105)to overlap the necklines (106), and a tag (8) representing the size, thecleaning method, and the like is attached to a hem-side end portion ofthe right side joint cloth (109). Raglan lines (116) are formed at fourpositions by junction lines where the left sleeve (104) and the rightsleeve (105) are joined to the left and right armholes (110) of thefront piece (102) and the rear piece (103), respectively.

As illustrated in FIG. 6, the respective dimensions of the reversibleshirt (100) are as follows. A straight-line distance between a portionbelow a sleeve-side end portion of the left side joint cloth (109) at apredetermined distance (about 1 cm) and a portion below a sleeve-sideend portion of the right side joint cloth (109) at a predetermineddistance (about 1 cm) will be referred to as “body width (111)”. Astraight-line distance between a midpoint of a neckline (106) of theleft sleeve (104) and a midpoint of a neckline (106) of the right sleeve(105) will be referred to as “neck width (113)”. A midpoint of astraight line connecting the midpoint of the neckline (106) of the leftsleeve (104) and the midpoint of the neckline (106) of the right sleeve(105) will be referred to as “midpoint (118)”, a straight-line distancebetween the midpoint (118) and a midpoint of the neckline (106) of thefront piece (102) will be referred to as “front neck depth (114)”, and astraight-line distance between the midpoint (118) and a midpoint of theneckline (106) of the rear piece (103) will be referred to as “back neckdepth (115)”. The front piece (102) and the rear piece (103) have thesame shape and the same size. Therefore, the front neck depth (114) andthe back neck depth (115) have the same length.

The neck width (113) has a length of 35% to 60% and preferably 40% to55% with respect to the body width (111). The front neck depth (114) andthe back neck depth (115) have a length of 45% to 65% and preferably 50%to 60% with respect to the neck width (113). Further, an angle (γ) of astraight line connecting the midpoint (118) and a neck-side end portionof the raglan line (116) with respect to the straight line connectingthe midpoint of the neckline (106) of the left sleeve (104) and themidpoint of the neckline (106) of the right sleeve (105) is preferably0° to 40°, and more preferably 0° to 20°. Note that the angle (γ) in thereversible shirt according to the second embodiment is 0°.

The reversible shirt according to the second embodiment has theabove-described configuration. As a result, even when the reversibleshirt is worn irrespective of whether the side to be worn is the frontside or the rear side, a desired appearance can be secured, and anoperation of raising, lowering, or turning an arm can be more smoothlyperformed.

The reversible shirt according to the present invention can be wornirrespective of whether the side to be worn is the inner side or theouter side, and can be worn irrespective of whether the side to be wornis the front side or the rear side while maintaining a desiredappearance and wear comfort. Further, since the front piece and the rearpiece have the same shape and the same size. Therefore, the work costsin the manufacturing steps can be reduced.

In addition, in the reversible shirt according to the present invention,the front piece and the rear piece having the same shape and the samesize are made of the same fabric having the same color, and the left andright sleeves are made of the same fabric having the same color as thefront piece and the rear piece. As a result, the shirt can have auniversal design “that is correct irrespective of the side to be worn”.Alternatively, by designing the front piece and the rear piece or theleft and right sleeves to have different designs or different colors orto be made of different fabrics, fashionability can be given in that theappearance can change depending on whether or not the side to be worn isthe front side or the rear side or is the inner side or the outer side.

INDUSTRIAL APPLICABILITY

The reversible shirt according to the present invention is applicable tovarious shirts such as an underwear or a sports shirt.

REFERENCE SIGNS LIST

(1) (101) reversible shirt

(2) (102) front piece

(3) (103) rear piece

(4) (104) left sleeve

(5) (105) right sleeve

(6) (106) neckline

(7) (107) collar portion

(8) tag

(9) (109) side joint cloth

(10) (110) armhole

(111) body width

(12) shoulder width

(13) (113) neck width

(14) (114) front neck depth

(15) (115) back neck depth

(17) shoulder joint cloth

(18) midpoint

(116) raglan line

(118) midpoint

(20) shoulder line gusset region

(30) sideline gusset region

1. A reversible shirt comprising a front piece, a rear piece, a leftsleeve, and a right sleeve that are made of a reversible fabric and arejoined to each other, wherein the front piece and the rear piece havethe same shape and the same size, and the shirt is capable of beingreversibly worn irrespective of whether the side to be worn is the frontside or the rear side or is the inner side or the outer side.
 2. Thereversible shirt according to claim 1, wherein a neck width has a lengththat is 30% to 68% with respect to a shoulder width, and a front neckdepth and a back neck depth have a length of 50% to 100% with respect tothe neck width.
 3. The reversible shirt according to claim 1, whereinthe front piece and the rear piece have a substantially triangularshoulder line gusset region for absorbing a difference in front-to-backthickness of a shoulder of a wearer in a portion ranging from an upperend of a left armhole to a left end portion of a neckline and in aportion ranging from an upper end of a right armhole to a right endportion of the neckline.
 4. The reversible shirt according to claim 1,wherein the reversible fabric forming the front piece and the rear pieceis made of knit fabric, and in the front piece and the rear piece, anangle (α) of a straight line connecting an upper end of a left armholeand a left end of a neckline and a straight line connecting an upper endof a right armhole and a right end of the neckline with respect to astraight line connecting the upper end of the left armhole and the upperend of the right armhole is 11° to 41°.
 5. The reversible shirtaccording to claim 4, wherein the angle (α) is 19° to 39° when the shirtis worn by a man, the angle (α) is 19° to 41° when the shirt is worn bya woman, and the angle (α) is 11° to 34° when the shirt is worn by achild.
 6. The reversible shirt according to claim 1, wherein the frontpiece and the rear piece have a substantially triangular sideline gussetregion for absorbing a difference in front-to-back thickness of ashoulder of a wearer in a portion ranging from an upper position of aleft sideline to a lower end portion of a left armhole and in a portionranging from an upper position of a right sideline to a lower endportion of a right armhole.
 7. The reversible shirt according to claim1, wherein the reversible fabric forming the front piece and the rearpiece is made of knit fabric, and in the front piece and the rear piece,an angle (β) of a straight line connecting an upper end and a lower endof a left armhole and a straight line connecting an upper end and alower end of a right armhole with respect to a straight line connectingthe upper end of the left armhole and the upper end of the right armholeis 91° to 115°.
 8. The reversible shirt according to claim 7, whereinthe angle (β) is 91° to 107° when the shirt is worn by a man, the angle(β) is 98° to 115° when the shirt is worn by a woman, and the angle (β)is 97° to 115° when the shirt is worn by a child.
 9. The reversibleshirt according to claim 1, wherein the left sleeve and the right sleeveare in the form of raglan sleeves, a front neck depth and a back neckdepth have a length of 45% to 95% with respect to a neck width, and anangle (γ) of a straight line connecting a midpoint of a straight linethat connects a midpoint of a neckline of the left sleeve and a midpointof a neckline of the right sleeve and a neck-side end portion of araglan line with respect to a straight line connecting the midpoint ofthe neckline of the left sleeve and the midpoint of the neckline of theright sleeve is 0° to 40°.